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Dynamic Analysis of Shearer Traction Unit Considering the Longitudinal Swing

Author

Listed:
  • Dejian Ma

    (College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Xin Zhang

    (College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Lirong Wan

    (College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Qingliang Zeng

    (College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
    College of Information Science and Engineering, Shandong Normal University, Jinan 250358, China)

  • Hongen Ge

    (College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

Abstract

Shearer traction failure occurs frequently, which seriously restricts the safe and efficient mining of coal. However, the influence of the shearer’s posture on traction has not been fully considered in the existing research. To improve traction reliability: the dynamic model of the traction unit is established considering longitudinal swing; the walking characteristics of the shearer and the dynamics of the traction unit are analyzed; and the influences of traction velocity, drum load cutting arm angle, and depression angle are discussed. The results show that the longitudinal swing is reciprocating and the positive swing is more serious. With the increase of the traction velocity, the walking stability of the shearer decreases while the contact force increases, especially the support slipper. The longitudinal swing increases with the increase of lateral load, but the supporting force of the support slipper decreases with the increase of cutting load. The forces of the walking wheel and the support slipper show an increasing trend with the increase of cutting arm angle. When the depression angle is 5–10°, the load distribution of the contact components of the traction unit is more balanced. The results provide a reference for the structure optimization of the shearer and the layout of coalface.

Suggested Citation

  • Dejian Ma & Xin Zhang & Lirong Wan & Qingliang Zeng & Hongen Ge, 2020. "Dynamic Analysis of Shearer Traction Unit Considering the Longitudinal Swing," Energies, MDPI, vol. 13(20), pages 1-15, October.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:20:p:5293-:d:426549
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    References listed on IDEAS

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    1. Dawid Szurgacz & Jarosław Brodny, 2020. "Adapting the Powered Roof Support to Diverse Mining and Geological Conditions," Energies, MDPI, vol. 13(2), pages 1-22, January.
    2. Lirong Wan & Dejian Ma & Xin Zhang, 2020. "Research on Meshing Characteristics of Shearer Walking Wheel Based on Rigid-Flexible Coupling," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-11, July.
    3. Kai Wang & Yanli Huang & Huadong Gao & Wen Zhai & Yongfeng Qiao & Junmeng Li & Shenyang Ouyang & Wei Li, 2020. "Recovery Technology of Bottom Coal in the Gob-Side Entry of Thick Coal Seam Based on Floor Heave Induced by Narrow Coal Pillar," Energies, MDPI, vol. 13(13), pages 1-20, July.
    4. Yanrong Dong & Junzhen Di & Xianjun Wang & Lindan Xue & Zhenhua Yang & Xuying Guo & Mingwei Li, 2020. "Dynamic Experimental Study on Treatment of Acid Mine Drainage by Bacteria Supported in Natural Minerals," Energies, MDPI, vol. 13(2), pages 1-14, January.
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    Cited by:

    1. Kuidong Gao & Xiaodi Zhang & Liqing Sun & Qingliang Zeng & Zhihai Liu, 2021. "Loading Performance of a Novel Shearer Drum Applied to Thin Coal Seams," Energies, MDPI, vol. 14(2), pages 1-21, January.

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